CN208281212U - A kind of novel intelligent fan - Google Patents
A kind of novel intelligent fan Download PDFInfo
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- CN208281212U CN208281212U CN201820631149.3U CN201820631149U CN208281212U CN 208281212 U CN208281212 U CN 208281212U CN 201820631149 U CN201820631149 U CN 201820631149U CN 208281212 U CN208281212 U CN 208281212U
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Abstract
The utility model relates to a kind of novel intelligent fans, including fan body and the control circuit being arranged on fan body；The control circuit include central control module, to input control instruction keyboard input module, the Temperature and Humidity module to detect ambient temperature and humidity, to detect ultrasonic distance measuring module of the human body at a distance from fan, the step motor control module to adjust fan head swinging rotational angle, to drive with control fan motor work motor driven and control module, LCD MODULE and alarm module.The novel intelligent fan functionality is more diversified, improves the comfort and practicability of fan.
Description
Technical field
The utility model relates to fan technology field, especially a kind of novel intelligent fan.
Background technique
Traditional electric fan cannot automatically adjust wind speed according to the temperature of the environment, in many places or many daytimes period
The night temperature difference be it is bigger, day temperature is high, and evening temperature is low, may not turn off electric fan due to day and night temperature at night and lead
People are caused to catch a cold flu；Traditional electric fan blast intensity be it is the same, it cannot be adjusted according to the distance of people and fan distance is automatic
Wind speed is saved, and allows people regardless of distance can experience equally comfortable wind speed；The maximum rotation of shaking the head of general tradition electric fan
Angle is all 90 °, and cannot comprehensive 360 ° turn or adjustable any fixed low-angle turn, it is many difference occasions can not meet
The needs of people.
Summary of the invention
In view of this, the purpose of this utility model is to propose a kind of novel intelligent fan, function is more diversified, improves
The comfort of fan.
The utility model is realized using following scheme: a kind of novel intelligent fan, including fan body and setting are in wind
Fan the control circuit on ontology；
The control circuit include central control module, to input control instruction keyboard input module, to detect
The Temperature and Humidity module of ambient temperature and humidity, to detect ultrasonic distance measuring module of the human body at a distance from fan, to adjust
The step motor control module of fan head swinging rotational angle, motor driven and control to drive with control fan motor work
Module, LCD MODULE and alarm module；
The output end of the keyboard input module is connected with the input terminal of the central control module, to the center
Control module transmits control instruction；The input terminal phase of the output end of the Temperature and Humidity module and the central control module
Even, to the temperature and humidity information to the central control module transmission environment；The output end of the ultrasonic distance measuring module and institute
The input terminal for stating central control module is connected, to the range information to central control module transmission human body and fan；
The output end of the central control module is connected with the input terminal of the step motor control module, to described
Step motor control module transfer adjusts the control instruction of the rotational angle of shaking the head of fan, the step motor control module and wind
The nearly motor of the step of fan is connected, to drive and control fan head swinging rotation；The output end of the central control module and the electricity
Machine driving is connected with the input terminal of control module, to the motor driven and control module transmission pulse signal, the electricity
Machine driving is connected with the output end of control module with fan direct current generator, to drive and control the fan direct current generator work
Make；The output end of the central control module is also connected with the input terminal of the LCD MODULE, works as to control its display
The safe distance of preceding ambient temperature and humidity information and human body and fan；The output end of the central control module also with the report
The input terminal of alert module is connected, and issues alarm signal to control it.
The control circuit further includes the power module being connected with external power supply, the power module and above-mentioned each module phase
It powers even and for it.
Further, the central control module includes STC89C52 single chip and is connected with STC89C52 single chip
To make the reset circuit of system reset, to provide the crystal oscillating circuit of clock signal for system；
The keyboard input module includes the first key K1, the wind to switch fan to switch fan operational mode
Fast the second key of gear K2, rotational angle of shaking the head to control fan third key K3, to carry out system reset
Four key K4；One end of the first key K1 is connected with the port P3.4 of STC89C52 single chip, the second key K2's
One end is connected with the port P3.5 of STC89C52 single chip, one end of the third key K3 and the P3.6 of STC89C52 single chip
Port is connected, and one end of the 4th key K4 is connected with the port RST of STC89C52 single chip, the first key K1, the
The other end of two key K2, third key K3 and the 4th key K4 are grounded.
Further, the Temperature and Humidity module uses the humiture collection chip of model DHT11, and DHT11 is warm and humid
The output pin DATA of degree acquisition chip is connected with the port P2.2 of STC89C52 single chip, the electricity of DHT11 humiture collection electricity
Source pin VCC is connected with 5V power supply, and the empty foot of DHT11 humiture collection electricity is connected through a 10K resistance with 5V power supply, DHT11
The grounding pin Gnd of humiture collection electricity is grounded.
Further, the ultrasonic distance measuring module uses the ultrasonic distance measurement chip of model HC-SR04, HC-SR04
There are four external interfaces for ultrasonic distance measurement chip tool, are power pins VCC respectively, Trig control signal input pin Trig, return
Ring signal output pin Echo and grounding pin Gnd；Wherein, the power pins VCC is connected with 5V power supply, the triggering
Control signal input pin Trig be connected with the port P2.1 of STC89C52 single chip, the response signal output pin Echo and
The port P2.0 of STC89C52 single chip is connected, grounding pin Gnd ground connection.
Further, the alarm module includes active buzzer, anode and 9012 triodes of the active buzzer
Collector be connected, the emitter of 9012 triode is connected with 5V power supply, and the base stage of 9012 triode is through a 1K
Resistance is connected with the port P2.3 of STC89C52 single chip, the cathode ground connection of the active buzzer；
The LCD MODULE includes LCD1602 display screen, RS pin, the RW pin, EN of the LCD1602 display screen
Pin is connected with the port P1.0 of STC89C52 single chip, the port P1.1, the port P2.5 respectively.
Further, the step motor control module uses the driver being made of ULN2003 driving chip, described
Any 4 input terminals of ULN2003 driving chip respectively with the port P1.2 of STC89C52 single chip, the port P1.3, the end P1.4
Mouth, the port P1.5 are connected, and the output end of the ULN2003 driving chip is connected with the interface of stepper motor；
The motor driven and control module use the driver being made of L298N driving chip, and the L298N drives core
Any 2 input terminals of piece are connected with the port P1.6 of STC89C52 single chip, the port P1.7 respectively, and the L298N drives core
The one of input port ENA of piece is connected with the port P3.2 of STC89C52 single chip, the output of the L298N driving chip
End is connected with the input terminal of direct current generator.
To sum up, which can be realized following major function: (1) being adopted using DHT11 humiture collection chip
Collect the temperature and humidity of current environment；(2) the far and near distance value of HC-SR04 ultrasonic distance measurement chip measurement people and fan is utilized；(3) sharp
With the operational mode of key switching fan and the selection of fan height gear；(4) according to the current temperature value, distance value passes through
The motor operation range of PWM pulse width signal control fan is adjusted the speed automatically, and shows temperature and humidity and distance；(5) pass through stepping
Motor adjusts fan head swinging rotational angle；(6) alarm signal is exported by buzzer.As it can be seen that existing for traditional electric fan
Some defects, the utility model design the intelligent fan based on STC89C52 single chip can be adjusted automatically according to environment temperature
Speed, when temperature is too low, fan can be automatically closed；According to ultrasonic distance measurement chip it is collected when forefathers at a distance from fan from
It is dynamic to adjust wind speed, make people's distance that can experience the same wind speed, in addition to those is protected to like being sent out with fan blow head
Schoolgirl and love to play the child of fan, when distance is less than certain value, fan can be automatically closed and buzzer warning, prompts simultaneously
It is too close from fan to alert people；By the rotational angle of shaking the head by key control fan, the more public arena of people we
360 ° turns or 180 ° can be switched to turn, smaller fixed angle can be switched in the fewer interior of people and turned, according to
The rotational angle of different situations self-setting fan is thus able to satisfy the needs of various occasion people；By LCD1602 liquid crystal
Show current temperature and humidity value and distance value, people is allowed to know current ambient temperature and humidity and the safe distance with electric fan, this
It is a kind of mode for reminding people.
Compared with prior art, the utility model have it is following the utility model has the advantages that the intelligent fan function of the utility model more
Diversification improves the comfort of fan, allows fan to tend to automation, hommization, people is allow to enjoy electric fan band
The convenience come.
Detailed description of the invention
Fig. 1 is the schematic illustration of the control circuit of the utility model.
Fig. 2 is the circuit diagram of the central control module of the utility model.
Fig. 3 is the circuit diagram of the keyboard input module of the utility model.
Fig. 4 is the circuit diagram of the Temperature and Humidity module of the utility model.
Fig. 5 is the circuit diagram of the ultrasonic distance measuring module of the utility model.
Fig. 6 is the circuit diagram of the alarm module of the utility model.
Fig. 7 is the circuit diagram of the LCD MODULE of the utility model.
Fig. 8 is the circuit diagram of the step motor control module of the utility model.
Fig. 9 is the motor driven of the utility model and the circuit diagram of control module.
Figure 10 is the structural schematic diagram of the fan body of the utility model.
Figure 11 is the flow diagram of the control method of the utility model.
Figure 12 is the flow diagram under the ultrasonic wave rate controlling mode of the utility model.
Figure 13 is the flow diagram under the temperature speed-regulating mode of the utility model.
Figure 14 is the control method flow diagram of the stepper motor of the utility model.
Specific embodiment
The utility model is described further below with reference to embodiment and embodiment.
Present embodiment provides a kind of novel intelligent fan, including fan body and the control being arranged on fan body
Circuit；
As shown in Figure 1, the control circuit includes central control module, to the key-press input mould of input control instruction
Block, the Temperature and Humidity module to detect ambient temperature and humidity, to detect ultrasonic distance measurement mould of the human body at a distance from fan
Block, the step motor control module to adjust fan head swinging rotational angle, the electricity to drive with control fan motor work
Machine driving and control module, LCD MODULE and alarm module；
The output end of the keyboard input module is connected with the input terminal of the central control module, to the center
Control module transmits control instruction；The input terminal phase of the output end of the Temperature and Humidity module and the central control module
Even, to the temperature and humidity information to the central control module transmission environment；The output end of the ultrasonic distance measuring module and institute
The input terminal for stating central control module is connected, to the range information to central control module transmission human body and fan；
The output end of the central control module is connected with the input terminal of the step motor control module, to described
Step motor control module transfer adjusts the control instruction of the rotational angle of shaking the head of fan, the step motor control module and wind
The nearly motor of the step of fan is connected, to drive and control fan head swinging rotation；The output end of the central control module and the electricity
Machine driving is connected with the input terminal of control module, to the motor driven and control module transmission pulse signal, the electricity
Machine driving is connected with the output end of control module with fan direct current generator, to drive and control the fan direct current generator work
Make；The output end of the central control module is also connected with the input terminal of the LCD MODULE, works as to control its display
The safe distance of preceding ambient temperature and humidity information and human body and fan；The output end of the central control module also with the report
The input terminal of alert module is connected, and issues alarm signal to control it.
The control circuit further includes the power module being connected with external power supply, the power module and above-mentioned each module phase
It powers even and for it.
In the present embodiment, as shown in Fig. 2, the central control module include STC89C52 single chip and with
The connected reset circuit to make system reset of STC89C52 single chip, the crystal oscillator electricity to provide clock signal for system
Road；Wherein, reset circuit can make system return to the working condition of most initial, prevent program fleet.
In the present embodiment, as shown in figure 3, the keyboard input module includes first to switch fan operational mode
Key K1, the second key of wind-speed gear K2 to switch fan, the rotational angle of shaking the head to control fan third key
K3, the 4th key K4 to carry out system reset；One end of the first key K1 and the end P3.4 of STC89C52 single chip
Mouth is connected, and one end of the second key K2 is connected with the port P3.5 of STC89C52 single chip, and the one of the third key K3
End is connected with the port P3.6 of STC89C52 single chip, one end of the 4th key K4 and the end RST of STC89C52 single chip
Mouthful be connected, the first key K1, the second key K2, third key K3 and the 4th key K4 the other end be grounded.4 solely
Vertical key can be realized different functions.
In the present embodiment, as shown in figure 4, the Temperature and Humidity module uses the humiture collection of model DHT11
Chip, the output pin DATA of DHT11 humiture collection chip are connected with the port P2.2 of STC89C52 single chip, DHT11 temperature
The power pins VCC of humidity collection electricity is connected with 5V power supply, and the empty foot of DHT11 humiture collection electricity is through a 10K resistance and 5V
Power supply is connected, the grounding pin Gnd ground connection of DHT11 humiture collection electricity.Environment is acquired by humiture collection chip DHT11
Temperature and humidity, central control module can according to temperature value automatically adjust electric fan wind speed, DHT11 humiture collection chip it is defeated
Pin DATA is communicated with STC89C52 single chip using monobus out.
In the present embodiment, as shown in figure 5, the ultrasonic distance measuring module uses the ultrasound of model HC-SR04
Away from chip, HC-SR04 ultrasonic distance measurement chip tool is that power pins VCC, Trig control signal are defeated respectively there are four external interface
Enter pin Trig, response signal output pin Echo and grounding pin Gnd；Wherein, the power pins VCC and 5V power supply
It is connected, the Trig control signal input pin Trig is connected with the port P2.1 of STC89C52 single chip, the response signal
Output pin Echo is connected with the port P2.0 of STC89C52 single chip, grounding pin Gnd ground connection.HC-SR04 ultrasonic distance measurement
Chip uses the work working voltage of 5V, operating current 15mA, maximum range 2m, and nearest range is 2cm, and measurement angle is
15°。
In the present embodiment, as shown in fig. 6, the alarm module includes active buzzer, the active buzzer is just
Pole is connected with the collector of 9012 triodes, and the emitter of 9012 triode is connected with 5V power supply, 9012 triode
Base stage be connected through a 1K resistance with the port P2.3 of STC89C52 single chip, the cathode of active buzzer ground connection.When
Apart from when too close or Current Temperatures are too low, buzzer warning plays the role of prompt for people and fan；When distance is normal or temperature
When normal, buzzer releases alarm.
In the present embodiment, as shown in fig. 7, the LCD MODULE includes LCD1602 display screen, the LCD1602
The RS pin of display screen, RW pin, EN pin respectively with the port P1.0 of STC89C52 single chip, the port P1.1, the port P2.5
It is connected.LCD1602 display screen has 16 external pin interfaces, can show 2X16 character.The system mainly uses RS (to post
Storage selection), three R/W (read-write operation selection), EN (enable signal) pins initialized, write order writes data, therefore
RS pin, RW pin, EN pin are connected with the port P1.0 of STC89C52 single chip, the port P1.1, the port P2.5 respectively,
LCD1206 display screen can show collected ultrasonic distance value and temperature and humidity value.
In the present embodiment, as shown in figure 8, the step motor control module ULN2003 driving chip using being made of
Driver, any 4 input terminals of the ULN2003 driving chip respectively with the port P1.2 of STC89C52 single chip,
The port P1.3, the port P1.4, the port P1.5 are connected, the interface phase of the output end and stepper motor of the ULN2003 driving chip
Even；Wherein, stepper motor uses the 28BYJ-48 decelerating step motor of 4 phase, 5 line, operating voltage 5V-12V, and operating current is
200mA。
In the present embodiment, as shown in figure 9, the motor driven is formed with control module using by L298N driving chip
Driver, any 2 input terminals of the L298N driving chip respectively with the port P1.6 of STC89C52 single chip, P1.7
Port is connected, the port the P3.2 phase of the one of input port ENA of L298N driving chip and STC89C52 single chip
Even, the output end of the L298N driving chip is connected with the input terminal of direct current generator.The speed of the DC generator speed of fan is
It is adjusted by PWM pulse width signal, according to Current Temperatures and distance signal, output duty cycle is adjustable for the port single-chip microcontroller P3.2
Pwm pulse signal is input to the one of input port ENA of L298N, and central control module can be according to environment Current Temperatures
Height, people and fan distance distance control PWM pulse width signal, and then control the revolving speed of direct current generator, realize fan
Wind speed is adjusted.
In the present embodiment, as shown in Figure 10, the fan body include bracket 1, setting bracket upper bearing (metal) 2, with
And the support rod 3 for being arranged with flabellum 4 being connected with bearing；Wherein, active buzzer 5, ultrasonic distance measurement chip 7, temperature and humidity are adopted
Collect 6,4 keys 8 of chip and be respectively provided on bracket 1 with display screen 9, information exchange can be carried out with user；Stepper motor 10
It drives support rod 1 to rotate by the driving work of bearing 2, and then changes the rotational angle of shaking the head of fan；Direct current generator 11 then drives
Flabellum 4 rotates at different rates, and then controls the wind speed of fan.
The control method of novel intelligent fan in the present embodiment, comprising the following steps:
Step S1: power module connects external power supply, and fan electrifying startup, pressing the 4th key K4 resets fan；
Step S2: the first key K1 of pressing to be as needed to select the different operational modes of fan, and the first key K1 will be by
Pressure number is transmitted to central control module, and the central control module selects switching ultrasound according to the compression number of the first key K1
Wave rate controlling mode, temperature speed-regulating mode and manual governing mode；Wherein, under the ultrasonic wave rate controlling mode, ultrasonic distance measurement
The range information of module acquisition current human and fan is simultaneously transmitted in central control module, and the central control module is according to working as
Preceding distance value control motor driven and control module and alarm module work, and then control the wind speed of fan；The temperature tune
Under fast mode, Temperature and Humidity module acquisition current environment temperature and humidity information simultaneously be transmitted in central control module, it is described in
It entreats control module to control motor driven and control module and alarm module work according to collected temperature value, and then controls fan
Wind speed；It is described as needed by the second key K2 is stated to select the different wind-speed gears of fan under the manual governing mode
Compression number is transmitted to central control module by the second key K2, and the central control module is secondary according to the pressing of the second key K2
Number control motor driven and control module work, and the motor driven works from the motor of control module control fan different
Gear, and then control the wind speed of fan；
Step S3: for pressing third key K3 to control fan head swinging rotational angle, the third key K3 will as needed
Compression number is transmitted to central control module, and the central control module controls stepping electricity according to the compression number of third key K3
The work of machine control module, the step motor control module control stepper motor are rotated forward, are rotated backward, stopping operating or consolidating
Determine angular circulation to turn, and then controls the rotational angle of shaking the head of fan.
In the present embodiment, as shown in figure 12, in the step S2, the ultrasonic wave rate controlling mode specifically:
Step S21: the central control module mould initializes and starts timer, and forefathers are worked as in ultrasonic distance measuring module acquisition
The range information of body and fan is simultaneously transmitted in central control module；
Step S22: the central control module starts timing, and judges whether to receive ultrasound within a certain period of time
The range information come away from module transfer；
Step S23: if the central control module does not receive range information, return step S22；If the center control
Molding block receives range information, then controls control motor driven and control module according to range information and alarm module works:
When the distance value of human body and fan that the central control module receives is less than 10cm, the central control module is through motor
It drives and stops working with the motor of control module control fan, while controlling the alarm module and alarming and in LCD MODULE
The current distance value of upper display, return step S22；At the distance value of human body and fan that the central control module receives
When 10cm to 50cm, the central control module works through the motor of motor driven and control module control fan at 1 grade, place
In low speed operational taps, while controlling LCD MODULE and showing current distance value, return step S22；When the center control
When the distance value of human body and fan that molding block receives is in 50cm to 150cm, the central control module is through motor driven
It works with the motor of control module control fan at 2 grades, is in middling speed operational taps, while controlling LCD MODULE and showing and working as
Preceding distance value, return step S22；When the distance value of human body and fan that the central control module receives is greater than 150cm
When, the central control module works through the motor of motor driven and control module control fan at 3 grades, is in high-speed cruising shelves
Position, while controlling LCD MODULE and showing current distance value, return step S22.
In the present embodiment, in the step S2, as shown in figure 13, the temperature speed-regulating mode specifically:
The temperature and humidity information of Temperature and Humidity module acquisition current environment is simultaneously transmitted in central control module, the center
Control module controls motor driven and control module according to collected temperature value and alarm module works, while controlling liquid crystal
Show that module shows current temperature value and humidity value: described when the temperature value that the central control module receives is less than 10 °
Central control module stops working through motor driven and the motor of control module control fan, while controlling the alarm module report
It is alert；When the temperature value that the central control module receives is in 10 ° to 23 °, the central control module is through motor driven
It works with the motor of control module control fan at 1 grade, is in low speed operational taps；It is received when the central control module
When temperature value is greater than 23 °, the central control module works through the motor of motor driven and control module control fan at 2 grades,
In middling speed operational taps.
Wherein, the range of temperature value can be according to itself environment and demand sets itself.
In the present embodiment, as shown in figure 14, in the step S3 specifically:
Step S31: third key K3 when being in original state, and stepper motor stopping does not turn, and central control module monitoring is
The no pressing information for receiving third key K3；
Step S32: the central control module receives the compression number of third key K3 and according to different pressing time
The rotational angle of shaking the head of number control control fan: when the compression number for the third key K3 that the central control module receives is
When 1, the central control module controls stepper motor through step motor control module and rotates to positive direction, and fan is shaken the head towards one
Side rotation, return step S31；When the compression number for the third key K3 that central control module receives is 2, the center control
Molding block stops operating through step motor control module control stepper motor, and shaking the head for fan stops operating, return step S31；
When the compression number for the third key K3 that central control module receives is 3, the central control module is through stepper motor control
Molding block control stepper motor rotates to opposite direction and starts timer timing immediately, and shaking the head for fan is rotated towards the other side, returned
Return step S31；When the compression number for the third key K3 that central control module receives is 4, the central control module control
Timer processed stops timing and controls stepper motor the cycle rotation in fixed region, fan shake according to the time calculated
Head cycle rotation, return step S31 in fixed angle；When the pressing time for the third key K3 that central control module receives
When number is not 1,2,3 or 4, central control module does not control the stepper motor rotation, return step S31.
To sum up, which can be realized following major function: (1) being adopted using DHT11 humiture collection chip
Collect the temperature and humidity of current environment；(2) the far and near distance value of HC-SR04 ultrasonic distance measurement chip measurement people and fan is utilized；(3) sharp
With the operational mode of key switching fan and the selection of fan height gear；(4) according to the current temperature value, distance value passes through
The motor operation range of PWM pulse width signal control fan is adjusted the speed automatically, and shows temperature and humidity and distance；(5) pass through stepping
Motor adjusts fan head swinging rotational angle；(6) alarm signal is exported by buzzer.As it can be seen that existing for traditional electric fan
Some defects, the utility model design the intelligent fan based on STC89C52 single chip can be adjusted automatically according to environment temperature
Speed, when temperature is too low, fan can be automatically closed；According to ultrasonic distance measurement chip it is collected when forefathers at a distance from fan from
It is dynamic to adjust wind speed, make people's distance that can experience the same wind speed, in addition to those is protected to like being sent out with fan blow head
Schoolgirl and love to play the child of fan, when distance is less than certain value, fan can be automatically closed and buzzer warning, prompts simultaneously
It is too close from fan to alert people；By the rotational angle of shaking the head by key control fan, the more public arena of people we
360 ° turns or 180 ° can be switched to turn, smaller fixed angle can be switched in the fewer interior of people and turned, according to
The rotational angle of different situations self-setting fan is thus able to satisfy the needs of various occasion people；By LCD1602 liquid crystal
Show current temperature and humidity value and distance value, people is allowed to know current ambient temperature and humidity and the safe distance with electric fan, this
It is a kind of mode for reminding people.
Therefore, the intelligent fan function of the utility model is more diversified, improves the comfort of fan, fan is allowed more to become
To in automation, hommization, people are allow to enjoy electric fan bring convenient.
The above is only the preferred embodiment of the present invention, it is all done according to present utility model application the scope of the patents it is equal
Deng variation and modification, it should all belong to the covering scope of the utility model.
Claims (6)
1. a kind of novel intelligent fan, it is characterised in that: including fan body and the control circuit being arranged on fan body；
The control circuit include central control module, to input control instruction keyboard input module, to detect environment
The Temperature and Humidity module of temperature and humidity, to detect ultrasonic distance measuring module of the human body at a distance from fan, to adjust fan
Shake the head rotational angle step motor control module, to drive with control fan motor work motor driven and control mould
Block, LCD MODULE and alarm module；
The output end of the keyboard input module is connected with the input terminal of the central control module, to control to the center
Module transfer control instruction；The output end of the Temperature and Humidity module is connected with the input terminal of the central control module, uses
With to the temperature and humidity information of the central control module transmission environment；The output end of the ultrasonic distance measuring module and the center
The input terminal of control module is connected, to the range information to central control module transmission human body and fan；
The output end of the central control module is connected with the input terminal of the step motor control module, to the stepping
The control instruction of the rotational angle of shaking the head of motor control module transmission adjusting fan, the step motor control module and fan
It walks nearly motor to be connected, to drive and control fan head swinging rotation；The output end of the central control module and the motor drive
It is dynamic to be connected with the input terminal of control module, to the motor driven and control module transmission pulse signal, the motor is driven
It is dynamic to be connected with the output end of control module with fan direct current generator, it works to drive and control the fan direct current generator；Institute
The output end for stating central control module is also connected with the input terminal of the LCD MODULE, shows current ring to control it
The safe distance of border temperature and humidity information and human body and fan；The output end of the central control module also with the alarm module
Input terminal be connected, to control its issue alarm signal；
The control circuit further includes the power module being connected with external power supply, and the power module is connected simultaneously with above-mentioned each module
It powers for it.
2. a kind of novel intelligent fan according to claim 1, it is characterised in that: the central control module includes
STC89C52 single chip and the reset circuit to make system reset being connected with STC89C52 single chip, to be mentioned for system
For the crystal oscillating circuit of clock signal；
The keyboard input module includes to switch the first key K1 of fan operational mode, the wind speed shelves to switch fan
The second key K2 of position, rotational angle of shaking the head to control fan third key K3, to carry out the 4th of system reset by
Key K4；One end of the first key K1 is connected with the port P3.4 of STC89C52 single chip, one end of the second key K2
It is connected with the port P3.5 of STC89C52 single chip, one end of the third key K3 and the port P3.6 of STC89C52 single chip
It is connected, one end of the 4th key K4 is connected with the port RST of STC89C52 single chip, and the first key K1, second are pressed
The other end of key K2, third key K3 and the 4th key K4 are grounded.
3. a kind of novel intelligent fan according to claim 1, it is characterised in that: the Temperature and Humidity module uses type
Number humiture collection chip for being DHT11, the output pin DATA of DHT11 humiture collection chip and STC89C52 single chip
The port P2.2 is connected, and the power pins VCC of DHT11 humiture collection electricity is connected with 5V power supply, the sky of DHT11 humiture collection electricity
Foot is connected through a 10K resistance with 5V power supply, the grounding pin Gnd ground connection of DHT11 humiture collection electricity.
4. a kind of novel intelligent fan according to claim 1, it is characterised in that: the ultrasonic distance measuring module uses type
Number ultrasonic distance measurement chip for being HC-SR04, HC-SR04 ultrasonic distance measurement chip tool is power supply respectively there are four external interface
Pin VCC, Trig control signal input pin Trig, response signal output pin Echo and grounding pin Gnd；Wherein, institute
It states power pins VCC to be connected with 5V power supply, the P2.1 of the Trig control signal input pin Trig and STC89C52 single chip
Port is connected, and the response signal output pin Echo is connected with the port P2.0 of STC89C52 single chip, and grounding pin Gnd connects
Ground.
5. a kind of novel intelligent fan according to claim 1, it is characterised in that: the alarm module includes active buzzing
The anode of device, the active buzzer is connected with the collector of 9012 triodes, emitter and the 5V electricity of 9012 triode
Source is connected, and the base stage of 9012 triode is connected through a 1K resistance with the port P2.3 of STC89C52 single chip, described to have
The cathode of source buzzer is grounded；
The LCD MODULE includes LCD1602 display screen, RS pin, RW pin, the EN pin of the LCD1602 display screen
It is connected respectively with the port P1.0 of STC89C52 single chip, the port P1.1, the port P2.5.
6. a kind of novel intelligent fan according to claim 1, it is characterised in that: the step motor control module uses
The driver being made of ULN2003 driving chip, any 4 input terminals of the ULN2003 driving chip respectively with
The port P1.2, the port P1.3, the port P1.4, the port P1.5 of STC89C52 single chip are connected, the ULN2003 driving chip
Output end is connected with the interface of stepper motor；
The motor driven and control module use the driver being made of L298N driving chip, the L298N driving chip
Any 2 input terminals are connected with the port P1.6 of STC89C52 single chip, the port P1.7 respectively, the L298N driving chip its
In an input port ENA be connected with the port P3.2 of STC89C52 single chip, to obtain single-chip microcontroller transmission come duty
Than adjustable pwm pulse signal, the output end of the L298N driving chip is connected with the input terminal of direct current generator.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108644142A (en) * | 2018-04-28 | 2018-10-12 | 福建师范大学福清分校 | A kind of novel intelligent fan and its control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108644142A (en) * | 2018-04-28 | 2018-10-12 | 福建师范大学福清分校 | A kind of novel intelligent fan and its control method |
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